So I was reading this sticky,
And I thought maybe my boy is a halfsun. There is nothing in the tank he can rip his fins on, and I have no other conclusions, as there are no tank mates. This is the best pic I could get, as he is a fast fellow:P

Its possible he can be yes, But he is more HM... make sure to keep his water clean at all times...and add the correct amount of aquarium salt ...doin this will ensure that he doesn't get fungus and disease and it will keep the population of bacteria to a minimum...(beware of fin rot! he may have a mild case of fin rot) HM's get it quicker than CT's...so jus keep the water clean with the aquarium salt and he should be fine. :)